Warp Films have acquired the rights to Christopher Farnsworth‘s vampire novel Blood Oath and its follow-up Black Site, with plans to fast-track the book franchise the big screen. But this is not another Twilight — The novel is about a vampire secret agent named Nathaniel Cade who was captured by the United States Army just after the Civil War and joined the Secret Service where he has helped protect the presidency for the last 140 years. Imagine if James Bond were a vampire.